linux-kernel - Re: [PATCH] media: mtk-vcodec: add remoteproc dependency

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Date:   Fri, 4 Dec 2020 17:26:59 +0900
From:   Alexandre Courbot <acourbot@...omium.org>
To:     Arnd Bergmann <arnd@...nel.org>
Cc:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        Yunfei Dong <yunfei.dong@...iatek.com>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        Tiffany Lin <tiffany.lin@...iatek.com>,
        Arnd Bergmann <arnd@...db.de>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Jernej Skrabec <jernej.skrabec@...l.net>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Helen Koike <helen.koike@...labora.com>,
        Linux Media Mailing List <linux-media@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] media: mtk-vcodec: add remoteproc dependency

On Fri, Dec 4, 2020 at 8:15 AM Arnd Bergmann <arnd@...nel.org> wrote:
>
> From: Arnd Bergmann <arnd@...db.de>
>
> The SCP firmware can only be built if CONFIG_REMOTEPROC is
> enabled:
>
> WARNING: unmet direct dependencies detected for MTK_SCP
>   Depends on [n]: REMOTEPROC [=n] && (ARCH_MEDIATEK [=y] || COMPILE_TEST [=y])
>   Selected by [y]:
>   - VIDEO_MEDIATEK_VCODEC [=y] && MEDIA_SUPPORT [=y] && MEDIA_PLATFORM_SUPPORT [=y] && V4L_MEM2MEM_DRIVERS [=y] && (MTK_IOMMU [=y] || COMPILE_TEST [=y]) && VIDEO_DEV [=y] && VIDEO_V4L2 [=y] && (ARCH_MEDIATEK [=y] || COMPILE_TEST [=y])

Despite setting these same options I cannot reproduce this warning on
a merge of master + media. Which tree are you using?

>
> Add this as a dependency for mtk-vcodec.
>
> Fixes: c7244811b1c9 ("media: mtk-vcodec: add SCP firmware ops")
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> ---
>  drivers/media/platform/Kconfig | 1 +
>  1 file changed, 1 insertion(+)
>
> diff --git a/drivers/media/platform/Kconfig b/drivers/media/platform/Kconfig
> index ffffef2267f4..295f74c3c04b 100644
> --- a/drivers/media/platform/Kconfig
> +++ b/drivers/media/platform/Kconfig
> @@ -276,6 +276,7 @@ config VIDEO_MEDIATEK_VCODEC
>         # our dependencies, to avoid missing symbols during link.
>         depends on VIDEO_MEDIATEK_VPU || !VIDEO_MEDIATEK_VPU
>         depends on MTK_SCP || !MTK_SCP
> +       depends on REMOTEPROC
>         select VIDEOBUF2_DMA_CONTIG
>         select V4L2_MEM2MEM_DEV
>         select VIDEO_MEDIATEK_VCODEC_VPU if VIDEO_MEDIATEK_VPU
> --
> 2.27.0
>